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Fix: core panics when zero domain/full type of rule (#786)

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DarthVader 2021-03-16 19:07:32 +08:00 committed by GitHub
parent f9ac31853e
commit c71ae9b310
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1 changed files with 4 additions and 0 deletions
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4
common/strmatcher/mph_matcher.go
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@ -94,6 +94,10 @@ func (g *MphMatcherGroup) Build() {
g.ac.Build()
}
keyLen := len(*g.ruleMap)
if keyLen == 0 {
keyLen = 1
(*g.ruleMap)["empty___"] = RollingHash("empty___")
}
g.level0 = make([]uint32, nextPow2(keyLen/4))
g.level0Mask = len(g.level0) - 1
g.level1 = make([]uint32, nextPow2(keyLen))